房室折返性心动过速(AVRT)亦称旁道折返性心动过速,是阵发性室上性心动过速(PSVT)的主要类型之一。房室旁道(AP)作为折返环路的组成部分,参与房室间的环状运动或折返运动是这类PSVT的主要原因。尽管体表ECG和食道调搏能提供一些重要线索,但只有借助于晚近发展起来的电生理 Atrioventricular reentrant tachycardia (AVRT), also known as accessory reentrant tachycardia, is one of the major types of paroxysmal supraventricular tachycardia (PSVT). Atrium bypass (AP) As part of the reentry circuit, participation in the intercavitary annulus or reentry movement is the primary cause of this type of PSVT. Although surface ECG and esophageal pacing can provide some important clues, but only with the help of the recent development of electrophysiology